NDLI: Energy-efficient barrier coverage in bistatic radar sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Ruiqi Wang Shibo He Jiming Chen Zhiguo Shi Fen Hou
Copyright Year	2015
Description	Author affiliation: Dept. of Inf. & Electron. Eng., Zhejiang Univ., Hangzhou, China (Zhiguo Shi) \|\| State Key Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China (Ruiqi Wang; Shibo He; Jiming Chen) \|\| Dept. of Electr. & Comput. Eng., Univ. of Macau, Macau, China (Fen Hou)
Abstract	By taking advantage of active radio waves, radar sensors can provide high-accuracy target detection over traditional passive sensors. In this paper, we study barrier coverage in bistatic radar sensor networks (BRSNs), which consist of a set of transmitter radars and receiver radars. Barrier coverage in BRSNs is much more difficult than that in traditional sensor networks as the sensing area of a bistatic radar depends on the positions of both transmitter and receiver, and is typically a Cassini oval. Moreover, different transmitters and receivers can pair with each other by choosing the same frequency and thus the sensing network topology can be quite different in different time slots. To tackle this challenge, we first investigate the characteristic of the ε-covered area of a bistatic radar, then we represent a bistatic radar with a virtual point at the middle point of the line segment formed by the transmitter and receiver. With these representations, we formulate the barrier coverage problem in BRSNs as (k, ε)-Minimum Weight Barrier Coverage Problem ((k, ε)-MWBCP). By constructing a directed coverage graph, we transform the (k, ε)-MWBCP into finding k node-disjoint shortest paths and propose an energy-efficient algorithm called (k, ε)-MWBCA to solve the problem within polynomial time. Extensive simulations are conducted to demonstrate the performance of our proposed algorithm.
Starting Page	6743
Ending Page	6748
File Size	192854
Page Count	6
File Format	PDF
e-ISBN	9781467364324
DOI	10.1109/ICC.2015.7249400
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bistatic radar Receivers Belts Signal to noise ratio Radio transmitters
Content Type	Text
Resource Type	Article

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